Recruits of Papa Company, 4th Recruit Training Battalion, lunge on a Marine Corps Martial Arts Program endurance course March 13, 2014, on Parris Island, S.C. The course combines practicing martial arts techniques with combat conditioning. The training helps recruits retain newfound martial arts skills and continue to build strength and stamina to meet the Marine Corps’ high physical fitness standards. Papa Company is scheduled to graduate April 25, 2014. Parris Island has been the site of Marine Corps recruit training since Nov. 1, 1915. Today, approximately 20,000 recruits come to Parris Island annually for the chance to become United States Marines by enduring 13 weeks of rigorous, transformative training. Parris Island is home to entry-level enlisted training for 50 percent of males and 100 percent of females in the Marine Corps. (Photo by Cpl. Caitlin Brink)